Buffer overflow in Linux kernel - CVE-2012-2137
Published: January 23, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU43158
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-2137
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Buffer overflow in virt/kvm/irq_comm.c in the KVM subsystem in the Linux kernel before 3.2.24 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to Message Signaled Interrupts (MSI), irq routing entries, and an incorrect check by the setup_routing_entry function before invoking the kvm_set_irq function.
Affected software
Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-backport-oneiric (Ubuntu package)
Ubuntu
linux (Ubuntu package)
linux-lts-backport-oneiric (Ubuntu package)
How to mitigate CVE-2012-2137
Install update from vendor's website.
linux (Ubuntu package) - addressed in versions 2.6.32-44.98, 3.0.0-26.43, 3.2.0-29.46
linux-lts-backport-oneiric (Ubuntu package) - update to 3.0.0-26.43~lucid1
linux-lts-backport-oneiric (Ubuntu package) - update to 3.0.0-26.43~lucid1
External References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=f2ebd422f71cda9c791f76f85d2ca102ae34a1ed
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- http://rhn.redhat.com/errata/RHSA-2012-0743.html
- http://secunia.com/advisories/50952
- http://secunia.com/advisories/50961
- http://ubuntu.5.n6.nabble.com/PATCH-Oneiric-CVE-2012-2137-KVM-Fix-buffer-overflow-in-kvm-set-irq-td4990566.html
- http://ubuntu.com/usn/usn-1529-1
- http://ubuntu.com/usn/usn-1607-1
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24
- http://www.securityfocus.com/bid/54063
- http://www.ubuntu.com/usn/USN-1594-1
- http://www.ubuntu.com/usn/USN-1606-1
- http://www.ubuntu.com/usn/USN-1609-1
- https://bugzilla.redhat.com/show_bug.cgi?id=816151